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K/Ka-band Channel Characterization for Mobile Satellite Systems
Technology Satellite (ACTS) provides an ideal space- based platform for ... characteristics of the K/Ka-band channel. ... K/Ka-band propagation characteristics in a land mobile satellite ... first seven months of 1994 using the AMT provide data.
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Propagation Characteristics for Land Mobile Satellite Systems from
A survey of land mobile satellite channel characteristics is ... frequency range covers L/S-band, K/Ka-band and the EHF-band. ... an European ACTS project) a satellite propagation experiment at ... measurements, a spread spectrum signal using a pseudo noise bit ...... Channel Characterisation for Spread Spectrum. Satellite ...
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The land mobile satellite navigation multipath channel - wpnc.net
The land mobile satellite navigation multipath channel – ... is necessary for the planned wide-band services of Galileo using BOC (Binary ... direct path has a negative Doppler of about -70 Hz. The trees in front act as .... [8] A. Jahn, M. Sforza, S. Buonuomo and E. Lutz, “Narrow- and wideband channel characterization.
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Michael Rice - the Electrical and Computer Engineering Department
Michael Rice, Deborah Pinck, Jeff Slack, and Brian Humpherys, “K-Band Land- Mobile Satellite Channel. Characterization Using ACTS,” International Journal on  ...
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Characterisation and Channel Modelling for Satellite - InTech
Aug 18, 2010 ... impairments in land mobile satellite (LMS) communications. ... The use of satellite communication systems for modern broadband ... field of a motor acts on a current carrying conductor. ... channels in the same frequency band in order to increase the capacity. ..... where K is Rician factor (section 3.2) and 0.
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Ka-band Propagation Measurements: An Opportunity with the
ACTS, 30/20 GHz Program, Beacons, Propagation measurements, Ka-band ... Therefore, the paper begins with a brief history of the satellite programs that ... voice circuits or one TV signal) and two 2 MHz narrowband (12 two-way voice) channels [1]. ..... Estimating Fade Distributions from UHF to K-Band for Mobile Satellite ...
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N95- 14676 - NASA Technical Reports Server (NTRS)
Channel. Characterisation for Future. Ka-band. Mobile. Satellite. Systems ... with its. EUTELTRACKS system) could be of great benefit for the satellite operators. ... Ka-band. Land. Mobile. Beacon. Terminal. (LMBT). The Ka-band. LMBT is a ..... k co. AMT Experiments. Configuration. ACTS. __. 4 Ka-BAND DATA (29.634 GHz ...
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Underwater Acoustic Communication Channels: Propagation - MIT
best supported at low frequencies, and the band- ... nel and high latency of a satellite channel — are ... The path loss exponent k models the spreading loss, and ... physical path acts as a time-varying low-pass fil- ... Authorized licensed use limited to: MIT Libraries. ..... to mobile radio and underwater acoustic communication.
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Services, Technologies, and Systems at Ka Band and Beyond—A
Satellite (ACTS) in the United States, with more extensive use of on-board .... performed with both land mobile, maritime, and aeronautical terminals [13]. ..... experiments for 40–50-GHz channel characterization [38],. [41], as well as ..... REFERENCES. [1] T. Iida, K. Uchida, M. Yamamoto, and F. Matsui, “The role of satellite.
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ACTS Mobile Terminals Brian S. Abbe Martin J. Agan Thomas C
communications technologies such as ACTS' highly focused spotbeams with the smaller ... overcome the challenges of K- and Ka-band mobile satellite communications. The .... An all digital low rate modem suitable for use in the land -mobile satellite communications channel was developed for use with the terminal.
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A unified approach for calculating error rates of linearly - CiteSeerX
frequency-selective fading channels using RAKE reception. [2], [3]. The main ..... their land-mobile satellite channel characterization experi- ments, Lutz et ...... [47] M. Rice and B. Humpherys, “Statistical models for the ACTS K-band land mobile  ...
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A Unified Approach to the Probability of Error for Noncoherent and
for the average BER of binary DPSK with multichannel re- ception over i.i.d. ..... From their land-mobile satellite channel characterization experiments ...... [53] M. Rice and B. Humpherys, “Statistical models for the ACTS K-band land mobile ...
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Electronic format submission for AP2000 - DLR
ment of satellite navigation receivers for land mobile applications, where ... Although narrow-band channels like GSM (COST 207 [2]) or UMTS channels have been .... trees in front act as reflectors and appear in the Doppler delay spectrum with the ... k k k v v h p hp τ τ. ,. (1) where hk(τ) is the kth measured impulse response ...
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1755-1850 MHz 1. Band Introduction
Oct 6, 2014 ... collaboration with NTIA reallocated the 1755-1780 MHz portion of the .... The non -ACTS frequency assignments for the Air Force fixed point-to-point ... microwave system also carries the very high frequency (VHF) land mobile radio system ..... comprises 20 discrete channels within the 1761-1842 MHz band ...
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Get PDF (137K) - Wiley Online Library
The publisher is not associated with any product or vendor mentioned in this book. ... LTE – advanced and next generation wireless networks : channel modelling .... Vehicular Channel Characterization .... Ricean K-Factor ... 17.3 Challenges in Mobile Terminal Antenna Design ... 17.5 Multiple Antennas with Multiple Bands.
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Get PDF (282K) - Wiley Online Library
Adaptive Base-Station Antennas for Cellular Land Mobile Radio Systems,” IEEE ... a GSM System applying Antenna Arrays,” in Proceedings of ACTS Summit, 1997. ... conventional RAKE receivers with channel estimation,” IEEE Journal on .... channels in mobile digital communication systems part I : Characterization,” IEEE.
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Full-Text PDF - MDPI.com
Dec 10, 2014 ... In this work, the radio channel characterization for ISM 2.4 GHz ... However, the proper design of a WSN for use in large space ... isolated foliage effect on a mobile-satellite channel. ..... omnidirectional antenna coupled to the analyzer operates at ISM 2.4 GHz band and .... since it acts as initiator of the chain.
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Current Technology Status, Knowledge Gaps, and Research Needs
Sep 2, 2003 ... promising technologies, including ultra wideband (UWB), mobile area networks. ( MANet), other spread spectrum, and use of frequency bands that ..... Nokia RoofTop Wireless Router: This device acts as a wireless LAN access point ..... to the channel error characterization of transmissions inside buildings.
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Addition of a channel for XCO observations to a portable FTIR
May 25, 2016 ... the near-infrared spectral bands of the greenhouse gases un- der study are ... the characterisation of sources connected to observed XCO2 enhancements ... and methane would qualify the mobile spectrometer as a validation ... spheric solar spectra recorded with the dual-channel proto- type, and in Sect.
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NTIA Special Publication SP-08-452 Proceedings of the
Jun 2, 2008 ... Dynamic channel model for static mobile terminals in indoor environments. Yoshichika Ohta and ... Local Fading Characterization in Ground-Wave Propagation at MW Band. D. de la Vega, ..... Korean Radiowave Act states that frequency use ... and land mobile station occupy over 60% of all radio stations ...
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